Bug #9865: frozen IO object causes RuntimeError with inspect and fileno

• Status: Closed
• Priority: Normal
• Assignee: -
• Target version: -
• ruby -v: ruby 2.2.0dev (2014-05-27 trunk 46150) [x86_64-linux]
• Backport: 2.0.0: DONE, 2.1: DONE

[akr (Akira Tanaka)]

IO object を freeze すると、inspect や fileno が RuntimeError になるんですが、
これはよろしくないんじゃないかと思います。

% ./ruby -e 'f = open("."); f.freeze; p f'       
-e:1:in `inspect': can't modify frozen File (RuntimeError)
	from -e:1:in `p'
	from -e:1:in `<main>'
% ./ruby -e 'f = open("."); f.freeze; p f.fileno'
-e:1:in `fileno': can't modify frozen File (RuntimeError)
	from -e:1:in `<main>'
% ./ruby -v
ruby 2.2.0dev (2014-05-27 trunk 46150) [x86_64-linux]

あるいは、なにか理由がありましたっけ?

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

Applied in changeset r46151.

---

io.c: no error on frozen IO

• io.c (rb_io_fileno, rb_io_inspect): non-modification does not
  error on frozen IO. [ruby-dev:48241] [Bug #9865]

[usa (Usaku NAKAMURA)]

• Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN to 2.0.0: REQUIRED, 2.1: REQUIRED

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.0.0: REQUIRED, 2.1: REQUIRED to 2.0.0: REQUIRED, 2.1: DONE

r46151 and r46165 (partially) were backported into ruby_2_1 branch at r47140.

[usa (Usaku NAKAMURA)]

• Backport changed from 2.0.0: REQUIRED, 2.1: DONE to 2.0.0: DONE, 2.1: DONE

backported into ruby_2_0_0 at r37368.

note: respect existing security checks on this version.